The equation of stationary wave is y = 4 sin kx cos$\mathrm{\omega t}$, where y and x are in meter and t in second. Choose the correct option.

the dimensions of (kx) and ($\mathrm{\omega t}$) are same

the dimensions of A, k and $\mathrm{\omega }$ are same

the dimensions of k and $\mathrm{\omega }$ are same

the dimensions of A and k are same